As a Wikipedia reader I want to be shown as an option a list of article authors directly in the article itself.
The determination of the authorship of individual words (in wikitext or in the resulting html) would be very costly from technical point of view and can be implemented only with a long-time commitment from the WMF
In the long-run it would be theoretically possible to display the authorship directly while editing via VisualEditor
Native "Blame-Tools" could be integrated in a better way with a relatively small effort. However there is a danger that with a bigger visibility the negative impact of the misleading results would be to severe.
Needs to be further discussed with: within the German Community itself (needs to be further specified e.g. visible for all or only logged-in, distinction between major/not major authors, how bad would be a false attribution etc.)
This is part of the Top 20 wishes of the German community